Perhaps you should try some spelling variations:
nham thuc » nhan thuc, nam thuc, nham thu
cham tuc » pham thuc, tham thuc, cham soc
hoc sach » hoc sinh, hoc cac, hoc anh
nang xa » nang x, lang xa, nang ma
sach ky » sac ky, sach y, sach ty
va danh » va dinh, va dan, dia danh
va hanh » van hanh, va thanh, ban hanh
cua tre » cua te, cuu tre, cua triet
di cua » dai cua, doi cua, de cua

You may be able to get more results by adjusting your search query.

• If you are trying to use Boolean operators, they must be ALL CAPS: hoc sach ky nang xa hoi. lieu va ((cham tuc) OR (nham thuc)) ((va danh) OR (va hanh)) di cua tre~.
• The words AND, OR and NOT may confuse the search; try adding quotes: "hoc sach ky nang xa hoi. lieu va ((cham tuc) OR (nham thuc)) ((va danh) or (va hanh)) di cua tre~".
• Adding a wildcard symbol may retrieve word variants: hoc sach ky nang xa hoi. lieu va ((cham tuc) OR (nham thuc)) ((va danh) or (va hanh)) di cua tre*.